Features 1、Designed for drilling 6/8/10mm dowel holes. 2、There are locking function, equidistant extension rod function and gullets function. 3、Self-centering drill guide and adjustable right angle tool allow for precise doweling and maximum joint strength. 4、When drilling, steel bushings ensure precise alignment for perfectly positioned dowels. 5、This dowel jig set is suitable for making edge, surface, T-shaped, and L-shaped joints. Specification Features: Designed for drilling 6/8/10mm dowel holes. There are locking function, equidistant extension rod function and gullets function. Self-centering drill guide and adjustable right angle tool allow for precise doweling and maximum joint strength. When drilling, steel bushings ensure precise alignment for perfectly positioned dowels. This dowel jig set is suitable for making edge, surface, T-shaped, and L-shaped joints. Specification: Material: Aluminum alloy Color: Blue Package list: 5 x Woodworking Punching Aid 1 x Connecting Rod 5 x Limit Hole 3 x Drill Bits 4 x Wrench 1 x 15mm Hole Opener 1 x 28-32 Wrench 2 x Screw 2 x Gasket 3 x Locating Pin Package List